diff --git a/Cargo.lock b/Cargo.lock
index 6ed22d32..fbda6658 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5162,7 +5162,7 @@ dependencies = [
  "pallet-transaction-payment-rpc",
  "parity-scale-codec",
  "primitives",
- "rand 0.7.3",
+ "rand 0.8.4",
  "sc-authority-discovery",
  "sc-basic-authorship",
  "sc-chain-spec",
@@ -11396,7 +11396,7 @@ version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1f559b464de2e2bdabcac6a210d12e9b5a5973c251e102c44c585c71d51bd78e"
 dependencies = [
- "cfg-if 1.0.0",
+ "cfg-if 0.1.10",
  "rand 0.8.4",
  "static_assertions",
 ]
diff --git a/node/opportunity/Cargo.toml b/node/opportunity/Cargo.toml
index e4f90578..8c1ec61a 100644
--- a/node/opportunity/Cargo.toml
+++ b/node/opportunity/Cargo.toml
@@ -27,7 +27,7 @@ runtime-benchmarks = [
 ]
 
 [dependencies]
-rand = "0.7.2"
+rand = "0.8.4"
 structopt = { version = "0.3.8" }
 codec = { package = "parity-scale-codec", version = "2.0.0" }